TwinTurbo.NET: Nissan 300ZX forum - anyone can help please
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Subject anyone can help please
     
Posted by badluck on June 16, 2008 at 11:52 PM
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Message 91na auto. failed emissions. i think mechanic put a new tps or something not sure if he messed up. don't even know if it was a tps that was replaced.. anyway it passed emissions after going to porter and chester institute, but it still stalls and hesitates. porter and chester cleaned air box and maf
replaced air filters,
repair elec cam to coolant sensor
repair o2 sensor,,, which another mechanic recently put new used 02 sensors and wired it wrong... that was the local nisssan man..., doing his side thing he works for the dealer and any way aparently did half ass job.
full pressure test
diagnotic codes checked
throttle body and aic cleaning lof what's aic ???
anyway car ran good but on occassion stalls or hesitates, then will drive fine, when it acts up rpms bounce car will stall not usually when i'm moving though. although occassionally it will act way up and hesitate and want to stall badly..
Anyway the mechanic who did the tps, i think. said that what he did would give engine more air,,, he could not repair my emission problem so i then did 02, then porter and chester .... the nissan guy said before stalling problem that when he listened to fuel injecter with screwdriver he felt it needed to be replaced... anyway it wired cause one minute the car is fine and the next it wants to stall... thanks alot... have searched but haven't had any luck.....thank you for any help. also i have suspicion that the tps ( i know it was a small valve possibly called tps) may have been done incorrectly...... also front spoiler is torn badly missing bottom.

     
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